Motorcycle power takeoff device

Abstract

To provide a power take-off device for a motorcycle that has a simple structure and can take measures against heat generation from the engine of the motorcycle. [Solution] This motorcycle power take-off device 1 comprises a base 2, a front roller 3 having a front roller body 31 and a front roller axle body 32, the front roller axle body 32 being rotatably attached to the base 2, and the rear wheel of a motorcycle being placed on the front roller body 31, a rear roller 4 having a rear roller body 41 and a rear roller axle body 42, the rear roller axle body 42 being rotatably attached to the base 2, and the rear wheel of the motorcycle being placed on the rear roller body 41 so that power for driving an external device can be taken from the rear roller axle body 42, a motorcycle holding mechanism 5 fixed to the base 2 and capable of holding the motorcycle by pressing it from above, and a blower 6 having a plurality of blades 61 and an outlet 62, the plurality of blades 61 rotating in response to the rotation of the front roller axle body 32 to blow air from the outlet 62.

Description

[Technical field]

[0001] The present invention relates to a power take-off device for a motorcycle that takes off power from a rear wheel of the motorcycle. [Background technology]

[0002] In disaster areas, obtaining power is one of the most important things. The obtained power can be used to operate generators to generate electricity, or to operate pumps to purify water from rivers, ponds, and other water sources and turn it into drinking water or water for daily use.

[0003] Such power can be the rotational force of the rear wheel of a bicycle, as disclosed in Patent Document 1, for example. In Patent Document 1, a bicycle stand is erected and a pump is connected to the rear wheel, and the rotational force of the rear wheel generated by pedaling is used to drive the pump to purify water from a water source and make it into drinking water. In addition, the power can be the rotational force of the rear wheel of a motorcycle (moped), as disclosed in Patent Document 2, for example. In Patent Document 2, a motorcycle power takeoff device is provided that includes a base (frame) on which a front roller and a rear roller are rotatably attached, and a motorcycle holding mechanism (upright holding mechanism) that is fixed to the base and holds the motorcycle. The generator is connected to the rear roller via a rotation transmission mechanism. In Patent Document 2, the rear wheel of the motorcycle is placed on the front roller and the rear roller, and the engine of the motorcycle is started to generate electricity by using the rotational force of the rear wheel to drive a generator. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. WO00 / 59832 [Patent Document 2] JP 2019-156363 A Summary of the Invention [Problem to be solved by the invention]

[0005] Using the rotational force of the rear wheel of a motorcycle as disclosed in Patent Document 2 as power source requires more fuel than using the rotational force of the rear wheel of a bicycle as power source as disclosed in Patent Document 1, but it is possible to obtain a larger amount of power. However, when the engine of a motorcycle is started, it generates heat. If the engine is moving, it is cooled by catching the wind, but if the rear wheel is rotated without moving, some kind of heat generation countermeasure is necessary.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a power take-off device for a motorcycle which is simple in structure but capable of taking power from the rear wheel of a motorcycle and which can take measures against heat generation in the motorcycle engine. [Means for solving the problem]

[0007] In order to achieve the above object, the power take-off device for a motorcycle according to claim 1 is a front roller having a base, a front roller body and a front roller axle formed along its central axis, the front roller axle being rotatably attached to the base, and a rear wheel of a motorcycle being placed on the front roller body, and a rear roller body and a rear roller axle formed along its central axis, the rear roller axle being rotatably attached to the base, and the rear wheel of the motorcycle being placed on the rear roller body, a rear roller capable of extracting power for driving an external device from the roller shaft; a motorcycle holding mechanism fixed to the base and capable of holding the motorcycle by pressing it from above; and a blower having a plurality of blades and an outlet, each of the plurality of blades being attached radially around a rotating shaft fixed to the front roller shaft, such that when the rear wheel of the motorcycle rotates, the plurality of blades rotate in accordance with the rotation of the front roller shaft to blow air from the outlet toward an engine of the motorcycle. The nozzle is formed at the tip of a nozzle that is flexible and capable of maintaining its shape.

[0008] Claim 2The motorcycle power take-off device described in the above relates to a front roller having a base, a front roller main body and a front roller axle formed along its central axis, the front roller axle being rotatably attached to the base, and a rear wheel of a motorcycle can be placed on the front roller main body; a rear roller having a rear roller main body and a rear roller axle formed along its central axis, the rear roller axle being rotatably attached to the base, and the rear wheel of the motorcycle can be placed on the rear roller main body to take out power for driving an external device from the rear roller axle; and a power take-off device fixed to the base and pressing the motorcycle from above to hold the motorcycle. and a blower having a plurality of blades and an outlet, wherein when the rear wheel of the motorcycle rotates, the plurality of blades rotate in accordance with the rotation of the front roller shaft body to blow air from the outlet toward an engine of the motorcycle, the motorcycle holding mechanism has a pair of side parts each of whose lower parts is fixed to the left and right sides of the base, and a top part connected to each of the upper parts of the pair of side parts and capable of contacting an upper surface of the motorcycle, and each of the pair of side parts is provided with a turnbuckle capable of adjusting the length from the lower part to the upper part. Effect of the Invention

[0009] According to the motorcycle power take-off device of the present invention, it is possible to take off power from the rear wheel of a motorcycle while having a simple structure, and it is also possible to take measures against heat generation in the motorcycle engine. [Brief description of the drawings]

[0010] [Figure 1] 1 is a right side view showing, in a reduced scale, a state in which a rear wheel of a motorcycle is disposed on a motorcycle power take-off device according to an embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a right side view showing the motorcycle power take-off device. [Diagram 3] FIG. 2 is a plan view showing the motorcycle power take-off device. [Figure 4] FIG. 2 is a front view showing the motorcycle power take-off device. [Diagram 5] FIG. 4 is a plan view of the motorcycle power take-off device of FIG. 3 with a pump and a generator attached thereto. [Figure 6] FIG. 11 is a front view partially illustrating the state when the posture stabilizing device of the motorcycle power take-off device is used, where (a) shows the state when the posture stabilizing device is fixed to the carrier, and (b) shows the state when part of the motorcycle is sandwiched between two posture stabilizing devices. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described. As shown in Fig. 1, a motorcycle power take-off device 1 according to an embodiment of the present invention takes out power from a rear wheel RW of a motorcycle MC. As shown in Figs. 2 to 4, this motorcycle power take-off device 1 includes a base 2, a front roller 3, a rear roller 4, a motorcycle holding mechanism 5, and a blower 6. Note that in this application, a motorcycle MC refers to a two-wheeled vehicle in which the rear wheel RW rotates when the engine is started, and includes motorized bicycles, ordinary motorcycles, and large motorcycles.

[0012] The base 2 has front rollers 3, rear rollers 4, motorcycle holding mechanism 5, and blower 6 attached thereto, which will be described in detail later, and is in contact with the ground to support the weight of the rear wheel RW of the motorcycle MC when it is placed on the front rollers 3 and rear rollers 4, as will be described later. The base 2 (and the front rollers 3, rear rollers 4, and motorcycle holding mechanism 5) can be made of metal or tough synthetic resin, for example.

[0013] The front roller 3 has a front roller main body 31 and a front roller shaft body 32. The front roller shaft body 32 is formed along the central axis of the front roller main body 31, and protrudes on both sides in the axial direction of the front roller main body 31. The front roller shaft body 32 is rotatably attached to the base 2. Normally, the front roller shaft body 32 is attached to the base 2 via a bearing. A rear wheel RW of the motorcycle MC can be placed on the front roller main body 31.

[0014] The front roller shaft body 32 is preferably adjustable in its front-rear position relative to the base 2. To achieve this, fastener insertion holes 2a, 2a long in the front-rear direction are formed in the left and right parts of the base 2, and the left and right front roller attachment members 21, 21 to which the front roller shaft body 32 is attached can be moved forward and backward along the fastener insertion holes 2a, 2a together with the fasteners 21A (two fasteners 21A each in the figure) and fixed in position by the fasteners 21A (see FIG. 3). If the front-rear position of the front roller shaft body 32 relative to the base 2 is adjustable, it is possible to adjust the distance between the front roller 3 and the rear roller 4 in accordance with the size of the rear wheel RW of the motorcycle MC. The left and right front roller attachment members 21, 21 are part of the base 2. The fasteners are not particularly limited, but in FIGS. 2 to 4, all fasteners including the fasteners 21A are shown as thumb screws with washers.

[0015] The rear roller 4 is provided behind the front roller 3. The rear roller 4 has a rear roller main body 41 and a rear roller shaft body 42. The rear roller shaft body 42 is formed along the central axis of the rear roller main body 41, and protrudes on both sides of the rear roller main body 41 in the axial direction. The rear roller shaft body 42 is rotatably attached to the base 2. Usually, the rear roller shaft body 42 is attached to the base 2 via a bearing. The rear wheel RW of the motorcycle MC can be placed on the rear roller main body 41. Note that, although it cannot move forward and backward in Figs. 2 to 4, a rear roller mounting member 22 similar to the above-mentioned front roller mounting member 21 is provided so that the rear roller shaft body 42 can be attached thereto. The rear roller mounting member 22 is fixed by a fastener 22A.

[0016] Power for driving an external device can be taken out from the rear roller shaft body 42. For example, as shown in FIG. 5, the external device can be a pump 7 and a generator 8. It is also possible to use only one of the pump 7 and the generator 8 as the external device. The pump 7 can be attached to the rear roller shaft body 42 via a pump adapter 7A. The generator 8 can be attached to the rear roller shaft body 42 via a generator adapter 8A. The pump adapter 7A and the generator adapter 8A may simply facilitate the attachment of the pump 7 and the generator 8 as shown in FIG. 5, or may be provided with a power transmission member such as a gear or a belt. Although the upper and lower parts of the pump 7 are omitted in FIG. 5, a water source may be provided above the pump, and a water purifier for purifying water may be provided below the pump.

[0017] The motorcycle holding mechanism 5 is fixed to the base 2 and is capable of holding the motorcycle MC by pressing it from above. The motorcycle holding mechanism 5 has a pair of side portions 51, 51 and a top portion 52. The pair of side portions 51, 51 are fixed at their respective lower portions to the left and right sides of the base 2. The top portion 52 is connected to the upper portions of each of the pair of side portions 51, 51 and is capable of contacting the upper surface of the motorcycle MC.

[0018] Preferably, the position of each of the pair of side portions 51, 51 in the front-rear direction relative to the base 2 is adjustable. To achieve this, a fastener insertion hole 2b that is long in the front-rear direction is formed in the base 2 for each of the pair of side portions 51, 51 (see FIG. 2), and the pair of side portions 51, 51 can be moved front-rear together with two fasteners 51A along each fastener insertion hole 2b and fixed in position by the two fasteners 51A. If the position of each of the pair of side portions 51, 51 in the front-rear direction relative to the base 2 is adjustable, it is possible to adjust the front-rear position of the top portion 52 in accordance with the position of the cargo bed CA or seat SE of the motorcycle MC, i.e., the position at which the motorcycle MC is pressed from above.

[0019] The top portion 52 is normally adjustable in height in order to come into contact with and press against the upper surface of the motorcycle MC (specifically, the upper surface of the loading platform CA or the seat SE) from above.

[0020] Here, the top portion 52 can be configured with two rod members 520, 520 whose heights are adjustable so that the top surface of the motorcycle MC can come into contact with the top portion 52 at various points. To this end, two fastener insertion holes 51ba, 51ba that are long in the vertical direction can be formed in the upper portion 51b of each of the pair of side portions 51, 51, and the two rod members 520, 520 can be moved up and down along the fastener insertion holes 51ba, 51ba together with the two fasteners 520A, 520A to be fixed in position by the two fasteners 520A, 520A.

[0021] Furthermore, a plurality of posture stabilizing devices 521 can be attached to the top portion 52 to stabilize the posture of the motorcycle MC. The posture stabilizing device 521 can use a U-bolt 521a and fasteners 521b, 521c that are screwed to both ends of the U-bolt 521a (see FIG. 4). To enable the posture stabilizing device 521 to be positioned in the left-right direction, a fastener insertion hole 52a that is long in the left-right direction is formed in the top portion 52 (see FIG. 3), and the posture stabilizing device 521 can be moved left-right along the fastener insertion hole 52a and fixed in position by the fasteners 521b, 521c.

[0022] For example, when the top part 52 presses the loading platform CA from above, the shaft CAa extending in the front-rear direction of the loading platform CA can be fixed to the top part 52 by the U-bolt 521a of the posture stabilizer 521 as shown in Fig. 6(a). Also, when the top part 52 presses the seat SE or the like from above, the seat SE can be sandwiched and stabilized by the U-bolts 521a of the two posture stabilizers 521 as shown in Fig. 6(b). Note that the posture stabilizer 521 can be appropriately replaced with something other than the U-bolt 521a, etc., depending on the shape of the loading platform CA or the seat SE of the motorcycle MC.

[0023] Each of the pair of side parts 51, 51 is preferably provided with a turnbuckle 511 capable of adjusting the length from the lower part 51a to the upper part 51b. Each of the turnbuckles 511 has a turnbuckle body 511a, a lower screw 511b, and an upper screw 511c. The length from the lower part 51a to the upper part 51b is shortened when the turnbuckle body 511a is rotated in one direction (clockwise as viewed from above in the figure), and is extended when rotated in the opposite direction. If the length from the lower part 51a to the upper part 51b is shortened by the turnbuckles 511 of the pair of side parts 51, 51 after the top part 52 is brought into contact with the upper surface of the motorcycle MC, it becomes easy for the top part 52 to strongly press and hold the motorcycle MC from above.

[0024] The blower 6 has a plurality of blades 61 and an outlet 62. The plurality of blades 61 are attached radially around the rotating shaft 63. The rotating shaft 63 may be fixed to the front roller shaft 32 as shown in FIG. 2, or a power transmission member such as a gear or a belt may be provided between the rotating shaft 63 and the front roller shaft 32. When the rear wheel RW of the motorcycle MC rotates, the plurality of blades 61 rotate in accordance with the rotation of the front roller shaft 32, and blow air from the outlet 62. In FIG. 2, two blowers 6 are installed on the left and right, but only one may be installed if sufficient air can be obtained. In FIG. 2, the plurality of blades 61, the rotating shaft 63, and the front roller shaft 32 are indicated by dashed lines.

[0025] Blower 6 is capable of blowing air toward the engine of the mounted motorcycle MC from blower outlet 62. For this purpose, nozzle 64, at the tip of which blower outlet 62 is formed, may be flexible (deformable) and capable of maintaining its shape.

[0026] Thus, the motorcycle power take-off device 1 has a simple structure, yet is capable of taking out power from the rear wheel RW of the motorcycle MC, and also provides a measure against heat generation from the motorcycle engine.

[0027] The above describes the motorcycle power take-off device according to the embodiment of the present invention. However, the present invention is not limited to the above-described embodiment, and various design modifications are possible within the scope of the claims. [Explanation of symbols]

[0028] 1. Motorcycle power take-off device 2 Pedestal 2a, 2b Fastener insertion hole 21 Front roller mounting member 21A Fastener 22 Rear roller mounting member 22A Fastener 3 Front roller 31 Front roller body 32 Front roller shaft 4 Rear roller 41 Rear roller body 42 Rear roller shaft 5 Motorcycle holding mechanism 51 Side 51a Lower part of the side 51b Upper part of side 51ba Fastener insertion hole 511 Turnbuckle 511a Turnbuckle body 511b Lower screw 511c Upper screw 51A Fasteners 52 Heaven 52a Fastener insertion hole 520 Bar member 520A Fasteners 521 Posture stabilizer 521a U-bolt 521b, 521c fasteners 6. Blower 61 Feather 62 spout 63 Rotating shaft 64 Nozzles 7. Pump 7A Pump Adapter 8. Generator 8A generator adapter CA Motorcycle carrier CAa Shaft MC Motorcycle RW Rear wheel of motorcycle SE Motorcycle Seat

Claims

1. With a pedestal, a front roller having a front roller body and a front roller shaft body formed along a central axis thereof, the front roller shaft body being rotatably attached to the base, and a rear wheel of a motorcycle being able to be placed on the front roller body; a rear roller having a rear roller main body and a rear roller shaft body formed along a central axis thereof, the rear roller shaft body being rotatably attached to the base, the rear wheel of the motorcycle being placed on the rear roller main body, and power for driving an external device being able to be taken from the rear roller shaft body; a motorcycle holding mechanism that is fixed to the base and that can hold the motorcycle by pressing it from above; a blower having a plurality of blades and an outlet, each of the plurality of blades being radially attached around a rotating shaft fixed to the front roller shaft, so that when the rear wheel of the motorcycle rotates, the plurality of blades rotate in accordance with the rotation of the front roller shaft to blow air from the outlet toward an engine of the motorcycle; Equipped with The power take-off device for a motorcycle, wherein the nozzle is formed at the tip of a nozzle that is flexible and capable of maintaining its shape.

2. With a pedestal, a front roller having a front roller body and a front roller shaft body formed along a central axis thereof, the front roller shaft body being rotatably attached to the base, and a rear wheel of a motorcycle being able to be placed on the front roller body; a rear roller having a rear roller main body and a rear roller shaft body formed along a central axis thereof, the rear roller shaft body being rotatably attached to the base, the rear wheel of the motorcycle being placed on the rear roller main body, and power for driving an external device being able to be taken from the rear roller shaft body; a motorcycle holding mechanism that is fixed to the base and that can hold the motorcycle by pressing it from above; a blower having a plurality of blades and an outlet, the plurality of blades rotating in response to the rotation of the front roller shaft body when the rear wheel of the motorcycle rotates, and blowing air from the outlet toward an engine of the motorcycle; Equipped with the motorcycle holding mechanism has a pair of side parts each having a lower portion fixed to the left and right sides of the base, and a top part connected to an upper portion of each of the pair of side parts and capable of contacting an upper surface of the motorcycle, A motorcycle power take-off device in which the motorcycle holding mechanism is provided with a turnbuckle on each of the pair of side portions, the turnbuckle being capable of adjusting the length from the lower portion to the upper portion.

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